Dual Amp Wiring Kits

I have heard it has been said that a car audio system is only good as the stuff (wires) that connects it all together.....I'm looking for a Dual amp wiring kit and speaker wires that will produce exceptional sound image for my system.....I have been thinking about Pioneer GM-D9500F and the Pioneer GM-D8500M.....(if I go with the Pioneer stuff) The speakers are going to be Pioneer TS-D1720C (fronts) and TS-D6902R (rears).

And for comparison been thinking about the POLK Audio MM6501 and the POLK Audio MM691 (rear).....Amps POLK Audio PA D400.4 (spk amp) and POlk Audio MM 1040DVC

The car is a 97 Mercury Grand Marquis.....Any recommendations on quality wires for either of these products?